Mod 1 Pinion Gear Set 5mm Shaft Hardened Steel 15T 16T 17T 18T Four Pack For RC Cars Upgrade Rugged CNC Machined Wear Resistant Includes Four Gears Four Setscrews And A 2mm Hex Wrench

Mod 1 Pinion Gear Set for 5mm Shafts, Four Pack 15-18T
✔️ Four hardened steel pinions for 5mm shaft, CNC machined and nitrided

This four-piece Mod 1 pitch pinion gear set is built for RC cars with 5mm motor shafts. CNC machined hardened steel delivers wear resistance and longer fatigue life in demanding on-track use. Includes four gears, four M4x4mm setscrews, and a 2mm hex wrench for quick field maintenance.

✅ Tooth counts: 15, 16, 17, 18T
✅ Pitch: Mod 1 for precise mesh with standard spur gears
✅ Face width 7mm; length 14mm; fits 5mm shaft
✅ Hardened steel with nitriding for corrosion resistance and durability
✅ Includes 4 gears, 4 M4x4mm setscrews, and 1x 2mm hex wrench

💡 What is a pinion gear used for in RC car drivetrains?

RC pinion gears are the small driving gears that mesh with the spur gear to set the drive ratio and control top speed and torque. - It defines how motor RPM translates to wheel speed by mesh ratio - Use the correct pitch (Mod 1) and shaft size (5mm) to ensure proper fit - Hardened steel construction offers long life under harsh track use